PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Many downhole oil-production operations are carried out in highly corrosive environments resulting from production and/or re-injection of hydrocarbons and formation of brinewaters containing salts and gases, such as hydrogen sulfide and carbon dioxide which can pass through the pipe interior.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com